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# Solution

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1 B) 1847
Pattern:
7*1 – 2, 5*2 – 3, 7*3 – 4, 17*4 – 5, 63*5 – 6, 309*6 – 7

2 C) 1740
Pattern:
2^3 + 2, 4^3 + 4, 6^3 + 6, 8^3 + 8, 10^3 + 10

3 D) 24
Pattern:
132 – 1, 112 – 1, 92 – 1, 72 – 1, 52 – 1, 32 – 1

4 D) 127
Pattern:
5*2 – 3, 7*2 + 3, 17*2 – 3, 31*2 + 3, 65*2 – 3

5 E) None of these
Pattern:
15-10 = 5, 28-15 = 13, 49-28 = 21, 78-49 = 29
13-5 = 8, 21-13 = 8, 29-21 = 8
So next number is 78+29+8 = 115

6 C) 114
Pattern:
12*2, 24+3, 27*2, 54+3, 57*2

7 C) 114
Pattern:
12*2, 24+3, 27*2, 54+3, 57*2

8 D) 113
Pattern:
4^2, 4^2 + 5^2, 5^2 + 6^2, 6^2 + 7^2,….

9 E) 886.5
Pattern:
×0.5 + 0.5, ×1.5 + 1.5, ×2.5 + 2.5, ×3.5 + 3.5, ×4.5 + 4.5,

10 B) 432
Pattern:
×2 + 11, ×2 + 12, ×2 + 13, ×2 + 14, ×2 + 15,